src/BufferView_pimpl.C

   1 /**
   2  * \file BufferView_pimpl.C
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Asger Alstrup
   7  * \author Alfredo Braunstein
   8  * \author Lars Gullik Bjønnes
   9  * \author Jean-Marc Lasgouttes
  10  * \author Angus Leeming
  11  * \author John Levon
  12  * \author André Pönitz
  13  * \author Dekel Tsur
  14  * \author Jürgen Vigna
  15  *
  16  * Full author contact details are available in file CREDITS.
  17  */
  18
  19 #include <config.h>
  20
  21 #include "BufferView_pimpl.h"
  22 #include "buffer.h"
  23 #include "buffer_funcs.h"
  24 #include "bufferlist.h"
  25 #include "bufferparams.h"
  26 #include "coordcache.h"
  27 #include "cursor.h"
  28 #include "CutAndPaste.h"
  29 #include "debug.h"
  30 #include "dispatchresult.h"
  31 #include "factory.h"
  32 #include "FloatList.h"
  33 #include "funcrequest.h"
  34 #include "FuncStatus.h"
  35 #include "gettext.h"
  36 #include "intl.h"
  37 #include "insetiterator.h"
  38 #include "LaTeXFeatures.h"
  39 #include "lyx_cb.h" // added for Dispatch functions
  40 #include "lyx_main.h"
  41 #include "lyxfind.h"
  42 #include "lyxfunc.h"
  43 #include "lyxtext.h"
  44 #include "lyxrc.h"
  45 #include "lastfiles.h"
  46 #include "metricsinfo.h"
  47 #include "paragraph.h"
  48 #include "paragraph_funcs.h"
  49 #include "ParagraphParameters.h"
  50 #include "pariterator.h"
  51 #include "rowpainter.h"
  52 #include "undo.h"
  53 #include "vspace.h"
  54
  55 #include "insets/insetbibtex.h"
  56 #include "insets/insetref.h"
  57 #include "insets/insettext.h"
  58
  59 #include "frontends/Alert.h"
  60 #include "frontends/Dialogs.h"
  61 #include "frontends/FileDialog.h"
  62 #include "frontends/font_metrics.h"
  63 #include "frontends/LyXView.h"
  64 #include "frontends/LyXScreenFactory.h"
  65 #include "frontends/screen.h"
  66 #include "frontends/WorkArea.h"
  67 #include "frontends/WorkAreaFactory.h"
  68
  69 #include "graphics/Previews.h"
  70
  71 #include "support/convert.h"
  72 #include "support/filefilterlist.h"
  73 #include "support/filetools.h"
  74 #include "support/forkedcontr.h"
  75 #include "support/package.h"
  76 #include "support/types.h"
  77
  78 #include <boost/bind.hpp>
  79 #include <boost/current_function.hpp>
  80
  81 #include <functional>
  82 #include <vector>
  83
  84 using lyx::pos_type;
  85
  86 using lyx::support::AddPath;
  87 using lyx::support::bformat;
  88 using lyx::support::FileFilterList;
  89 using lyx::support::FileSearch;
  90 using lyx::support::ForkedcallsController;
  91 using lyx::support::IsDirWriteable;
  92 using lyx::support::MakeDisplayPath;
  93 using lyx::support::MakeAbsPath;
  94 using lyx::support::package;
  95
  96 using std::endl;
  97 using std::istringstream;
  98 using std::make_pair;
  99 using std::min;
 100 using std::max;
 101 using std::string;
 102 using std::mem_fun_ref;
 103 using std::vector;
 104
 105
 106 extern BufferList bufferlist;
 107
 108
 109 namespace {
 110
 111 unsigned int const saved_positions_num = 20;
 112
 113 // All the below connection objects are needed because of a bug in some
 114 // versions of GCC (<=2.96 are on the suspects list.) By having and assigning
 115 // to these connections we avoid a segfault upon startup, and also at exit.
 116 // (Lgb)
 117
 118 boost::signals::connection dispatchcon;
 119 boost::signals::connection timecon;
 120 boost::signals::connection doccon;
 121 boost::signals::connection resizecon;
 122 boost::signals::connection kpresscon;
 123 boost::signals::connection selectioncon;
 124 boost::signals::connection lostcon;
 125
 126
 127 /// Return an inset of this class if it exists at the current cursor position
 128 template <class T>
 129 T * getInsetByCode(LCursor & cur, InsetBase::Code code)
 130 {
 131         T * inset = 0;
 132         DocIterator it = cur;
 133         if (it.nextInset() &&
 134             it.nextInset()->lyxCode() == code) {
 135                 inset = static_cast<T*>(it.nextInset());
 136         }
 137         return inset;
 138 }
 139
 140 } // anon namespace
 141
 142
 143 BufferView::Pimpl::Pimpl(BufferView & bv, LyXView * owner,
 144                          int width, int height)
 145         : bv_(&bv), owner_(owner), buffer_(0), wh_(0), cursor_timeout(400),
 146           using_xterm_cursor(false), cursor_(bv),
 147           anchor_ref_(0), offset_ref_(0)
 148 {
 149         xsel_cache_.set = false;
 150
 151         workarea_.reset(WorkAreaFactory::create(*owner_, width, height));
 152         screen_.reset(LyXScreenFactory::create(workarea()));
 153
 154         // Setup the signals
 155         doccon = workarea().scrollDocView
 156                 .connect(boost::bind(&BufferView::Pimpl::scrollDocView, this, _1));
 157         resizecon = workarea().workAreaResize
 158                 .connect(boost::bind(&BufferView::Pimpl::workAreaResize, this));
 159         dispatchcon = workarea().dispatch
 160                 .connect(boost::bind(&BufferView::Pimpl::workAreaDispatch, this, _1));
 161         kpresscon = workarea().workAreaKeyPress
 162                 .connect(boost::bind(&BufferView::Pimpl::workAreaKeyPress, this, _1, _2));
 163         selectioncon = workarea().selectionRequested
 164                 .connect(boost::bind(&BufferView::Pimpl::selectionRequested, this));
 165         lostcon = workarea().selectionLost
 166                 .connect(boost::bind(&BufferView::Pimpl::selectionLost, this));
 167
 168         timecon = cursor_timeout.timeout
 169                 .connect(boost::bind(&BufferView::Pimpl::cursorToggle, this));
 170         cursor_timeout.start();
 171         saved_positions.resize(saved_positions_num);
 172 }
 173
 174
 175 void BufferView::Pimpl::addError(ErrorItem const & ei)
 176 {
 177         errorlist_.push_back(ei);
 178 }
 179
 180
 181 void BufferView::Pimpl::showReadonly(bool)
 182 {
 183         owner_->updateWindowTitle();
 184         owner_->getDialogs().updateBufferDependent(false);
 185 }
 186
 187
 188 void BufferView::Pimpl::connectBuffer(Buffer & buf)
 189 {
 190         if (errorConnection_.connected())
 191                 disconnectBuffer();
 192
 193         errorConnection_ =
 194                 buf.error.connect(
 195                         boost::bind(&BufferView::Pimpl::addError, this, _1));
 196
 197         messageConnection_ =
 198                 buf.message.connect(
 199                         boost::bind(&LyXView::message, owner_, _1));
 200
 201         busyConnection_ =
 202                 buf.busy.connect(
 203                         boost::bind(&LyXView::busy, owner_, _1));
 204
 205         titleConnection_ =
 206                 buf.updateTitles.connect(
 207                         boost::bind(&LyXView::updateWindowTitle, owner_));
 208
 209         timerConnection_ =
 210                 buf.resetAutosaveTimers.connect(
 211                         boost::bind(&LyXView::resetAutosaveTimer, owner_));
 212
 213         readonlyConnection_ =
 214                 buf.readonly.connect(
 215                         boost::bind(&BufferView::Pimpl::showReadonly, this, _1));
 216
 217         closingConnection_ =
 218                 buf.closing.connect(
 219                         boost::bind(&BufferView::Pimpl::setBuffer, this, (Buffer *)0));
 220 }
 221
 222
 223 void BufferView::Pimpl::disconnectBuffer()
 224 {
 225         errorConnection_.disconnect();
 226         messageConnection_.disconnect();
 227         busyConnection_.disconnect();
 228         titleConnection_.disconnect();
 229         timerConnection_.disconnect();
 230         readonlyConnection_.disconnect();
 231         closingConnection_.disconnect();
 232 }
 233
 234
 235 void BufferView::Pimpl::newFile(string const & filename, string const & tname,
 236         bool isNamed)
 237 {
 238         setBuffer(::newFile(filename, tname, isNamed));
 239 }
 240
 241
 242 bool BufferView::Pimpl::loadLyXFile(string const & filename, bool tolastfiles)
 243 {
 244         // Get absolute path of file and add ".lyx"
 245         // to the filename if necessary
 246         string s = FileSearch(string(), filename, "lyx");
 247
 248         bool const found = !s.empty();
 249
 250         if (!found)
 251                 s = filename;
 252
 253         // File already open?
 254         if (bufferlist.exists(s)) {
 255                 string const file = MakeDisplayPath(s, 20);
 256                 string text = bformat(_("The document %1$s is already "
 257                                         "loaded.\n\nDo you want to revert "
 258                                         "to the saved version?"), file);
 259                 int const ret = Alert::prompt(_("Revert to saved document?"),
 260                         text, 0, 1,  _("&Revert"), _("&Switch to document"));
 261
 262                 if (ret != 0) {
 263                         setBuffer(bufferlist.getBuffer(s));
 264                         return true;
 265                 }
 266                 // FIXME: should be LFUN_REVERT
 267                 if (!bufferlist.close(bufferlist.getBuffer(s), false))
 268                         return false;
 269                 // Fall through to new load. (Asger)
 270         }
 271
 272         Buffer * b = 0;
 273
 274         if (found) {
 275                 b = bufferlist.newBuffer(s);
 276                 connectBuffer(*b);
 277                 if (!::loadLyXFile(b, s)) {
 278                         bufferlist.release(b);
 279                         return false;
 280                 }
 281         } else {
 282                 string text = bformat(_("The document %1$s does not yet "
 283                                         "exist.\n\nDo you want to create "
 284                                         "a new document?"), s);
 285                 int const ret = Alert::prompt(_("Create new document?"),
 286                          text, 0, 1, _("&Create"), _("Cancel"));
 287
 288                 if (ret == 0)
 289                         b = ::newFile(s, string(), true);
 290                 else
 291                         return false;
 292         }
 293
 294         setBuffer(b);
 295         bv_->showErrorList(_("Parse"));
 296
 297         if (tolastfiles)
 298                 LyX::ref().lastfiles().newFile(b->fileName());
 299
 300         return true;
 301 }
 302
 303
 304 WorkArea & BufferView::Pimpl::workarea() const
 305 {
 306         return *workarea_.get();
 307 }
 308
 309
 310 LyXScreen & BufferView::Pimpl::screen() const
 311 {
 312         return *screen_.get();
 313 }
 314
 315
 316 Painter & BufferView::Pimpl::painter() const
 317 {
 318         return workarea().getPainter();
 319 }
 320
 321
 322 void BufferView::Pimpl::setBuffer(Buffer * b)
 323 {
 324         lyxerr[Debug::INFO] << BOOST_CURRENT_FUNCTION
 325                             << "[ b = " << b << "]" << endl;
 326
 327         if (buffer_) {
 328                 disconnectBuffer();
 329                 // Save the actual cursor position and anchor inside the
 330                 // buffer so that it can be restored in case we rechange
 331                 // to this buffer later on.
 332                 buffer_->saveCursor(cursor_.selectionBegin(),
 333                                     cursor_.selectionEnd());
 334         }
 335
 336         // If we are closing current buffer, switch to the first in
 337         // buffer list.
 338         if (!b) {
 339                 lyxerr[Debug::INFO] << BOOST_CURRENT_FUNCTION
 340                                     << " No Buffer!" << endl;
 341                 // We are closing the buffer, use the first buffer as current
 342                 buffer_ = bufferlist.first();
 343                 owner_->getDialogs().hideBufferDependent();
 344         } else {
 345                 // Set current buffer
 346                 buffer_ = b;
 347         }
 348
 349         // Reset old cursor
 350         cursor_ = LCursor(*bv_);
 351         anchor_ref_ = 0;
 352         offset_ref_ = 0;
 353
 354
 355         // If we're quitting lyx, don't bother updating stuff
 356         if (quitting)
 357                 return;
 358
 359         if (buffer_) {
 360                 lyxerr[Debug::INFO] << BOOST_CURRENT_FUNCTION
 361                                     << "Buffer addr: " << buffer_ << endl;
 362                 connectBuffer(*buffer_);
 363                 cursor_.push(buffer_->inset());
 364                 cursor_.resetAnchor();
 365                 buffer_->text().init(bv_);
 366                 buffer_->text().setCurrentFont(cursor_);
 367                 if (buffer_->getCursor().size() > 0 &&
 368                     buffer_->getAnchor().size() > 0)
 369                 {
 370                         cursor_.setCursor(buffer_->getAnchor().asDocIterator(&(buffer_->inset())));
 371                         cursor_.resetAnchor();
 372                         cursor_.setCursor(buffer_->getCursor().asDocIterator(&(buffer_->inset())));
 373                         cursor_.setSelection();
 374                 }
 375
 376                 // Buffer-dependent dialogs should be updated or
 377                 // hidden. This should go here because some dialogs (eg ToC)
 378                 // require bv_->text.
 379                 owner_->getDialogs().updateBufferDependent(true);
 380         }
 381
 382         update();
 383         updateScrollbar();
 384         owner_->updateMenubar();
 385         owner_->updateToolbars();
 386         owner_->updateLayoutChoice();
 387         owner_->updateWindowTitle();
 388
 389         // This is done after the layout combox has been populated
 390         if (buffer_) {
 391                 size_t i = cursor_.depth() - 1;
 392                 // we know we'll eventually find a paragraph
 393                 while (true) {
 394                         CursorSlice const & slice = cursor_[i];
 395                         if (!slice.inset().inMathed()) {
 396                                 LyXLayout_ptr const layout = slice.paragraph().layout();
 397                                 owner_->setLayout(layout->name());
 398                                 break;
 399                         }
 400                         BOOST_ASSERT(i>0);
 401                         --i;
 402                 }
 403         }
 404
 405         if (buffer_ && lyx::graphics::Previews::status() != LyXRC::PREVIEW_OFF)
 406                 lyx::graphics::Previews::get().generateBufferPreviews(*buffer_);
 407 }
 408
 409
 410 void BufferView::Pimpl::resizeCurrentBuffer()
 411 {
 412         lyxerr[Debug::DEBUG] << BOOST_CURRENT_FUNCTION << endl;
 413         owner_->busy(true);
 414         owner_->message(_("Formatting document..."));
 415
 416         LyXText * text = bv_->text();
 417         if (!text)
 418                 return;
 419
 420         text->init(bv_);
 421         update();
 422
 423         switchKeyMap();
 424         owner_->busy(false);
 425
 426         // Reset the "Formatting..." message
 427         owner_->clearMessage();
 428
 429         updateScrollbar();
 430 }
 431
 432
 433 void BufferView::Pimpl::updateScrollbar()
 434 {
 435         if (!bv_->text()) {
 436                 lyxerr[Debug::DEBUG] << BOOST_CURRENT_FUNCTION
 437                                      << " no text in updateScrollbar" << endl;
 438                 workarea().setScrollbarParams(0, 0, 0);
 439                 return;
 440         }
 441
 442         LyXText & t = *bv_->text();
 443         int const parsize = int(t.paragraphs().size() - 1);
 444         if (anchor_ref_ >  parsize)  {
 445                 anchor_ref_ = parsize;
 446                 offset_ref_ = 0;
 447         }
 448
 449         lyxerr[Debug::GUI]
 450                 << BOOST_CURRENT_FUNCTION
 451                 << " Updating scrollbar: height: " << t.paragraphs().size()
 452                 << " curr par: " << cursor_.bottom().pit()
 453                 << " default height " << defaultRowHeight() << endl;
 454
 455         // It would be better to fix the scrollbar to understand
 456         // values in [0..1] and divide everything by wh
 457
 458         // estimated average paragraph height:
 459         if (wh_ == 0)
 460                 wh_ = workarea().workHeight() / 4;
 461         int h = t.getPar(anchor_ref_).height();
 462
 463         // Normalize anchor/offset (MV):
 464         while (offset_ref_ > h && anchor_ref_ < parsize) {
 465                 anchor_ref_++;
 466                 offset_ref_ -= h;
 467                 h = t.getPar(anchor_ref_).height();
 468         }
 469         // Look at paragraph heights on-screen
 470         int sumh = 0;
 471         int nh = 0;
 472         for (lyx::pit_type pit = anchor_ref_; pit <= parsize; ++pit) {
 473                 if (sumh > workarea().workHeight())
 474                         break;
 475                 int const h2 = t.getPar(pit).height();
 476                 sumh += h2;
 477                 nh++;
 478         }
 479         int const hav = sumh / nh;
 480         // More realistic average paragraph height
 481         if (hav > wh_)
 482                 wh_ = hav;
 483
 484         workarea().setScrollbarParams((parsize + 1) * wh_,
 485                 anchor_ref_ * wh_ + int(offset_ref_ * wh_ / float(h)),
 486                 int(wh_ * defaultRowHeight() / float(h)));
 487 }
 488
 489
 490 void BufferView::Pimpl::scrollDocView(int value)
 491 {
 492         lyxerr[Debug::GUI] << BOOST_CURRENT_FUNCTION
 493                            << "[ value = " << value << "]" << endl;
 494
 495         if (!buffer_)
 496                 return;
 497
 498         screen().hideCursor();
 499
 500         LyXText & t = *bv_->text();
 501
 502         float const bar = value / float(wh_ * t.paragraphs().size());
 503
 504         anchor_ref_ = int(bar * t.paragraphs().size());
 505         if (anchor_ref_ >  int(t.paragraphs().size()) - 1)
 506                 anchor_ref_ = int(t.paragraphs().size()) - 1;
 507         t.redoParagraph(anchor_ref_);
 508         int const h = t.getPar(anchor_ref_).height();
 509         offset_ref_ = int((bar * t.paragraphs().size() - anchor_ref_) * h);
 510         update();
 511
 512         if (!lyxrc.cursor_follows_scrollbar)
 513                 return;
 514
 515         int const height = 2 * defaultRowHeight();
 516         int const first = height;
 517         int const last = workarea().workHeight() - height;
 518         LCursor & cur = cursor_;
 519
 520         bv_funcs::CurStatus st = bv_funcs::status(bv_, cur);
 521
 522         switch (st) {
 523         case bv_funcs::CUR_ABOVE:
 524                 t.setCursorFromCoordinates(cur, 0, first);
 525                 cur.clearSelection();
 526                 break;
 527         case bv_funcs::CUR_BELOW:
 528                 t.setCursorFromCoordinates(cur, 0, last);
 529                 cur.clearSelection();
 530                 break;
 531         case bv_funcs::CUR_INSIDE:
 532                 int const y = bv_funcs::getPos(cur, cur.boundary()).y_;
 533                 int const newy = min(last, max(y, first));
 534                 if (y != newy) {
 535                         cur.reset(buffer_->inset());
 536                         t.setCursorFromCoordinates(cur, 0, newy);
 537                 }
 538         }
 539         owner_->updateLayoutChoice();
 540 }
 541
 542
 543 void BufferView::Pimpl::scroll(int /*lines*/)
 544 {
 545 //      if (!buffer_)
 546 //              return;
 547 //
 548 //      LyXText const * t = bv_->text();
 549 //      int const line_height = defaultRowHeight();
 550 //
 551 //      // The new absolute coordinate
 552 //      int new_top_y = top_y() + lines * line_height;
 553 //
 554 //      // Restrict to a valid value
 555 //      new_top_y = std::min(t->height() - 4 * line_height, new_top_y);
 556 //      new_top_y = std::max(0, new_top_y);
 557 //
 558 //      scrollDocView(new_top_y);
 559 //
 560 //      // Update the scrollbar.
 561 //      workarea().setScrollbarParams(t->height(), top_y(), defaultRowHeight());
 562 }
 563
 564
 565 void BufferView::Pimpl::workAreaKeyPress(LyXKeySymPtr key,
 566                                          key_modifier::state state)
 567 {
 568         owner_->getLyXFunc().processKeySym(key, state);
 569
 570         /* This is perhaps a bit of a hack. When we move
 571          * around, or type, it's nice to be able to see
 572          * the cursor immediately after the keypress. So
 573          * we reset the toggle timeout and force the visibility
 574          * of the cursor. Note we cannot do this inside
 575          * dispatch() itself, because that's called recursively.
 576          */
 577         if (available())
 578                 screen().showCursor(*bv_);
 579 }
 580
 581
 582 void BufferView::Pimpl::selectionRequested()
 583 {
 584         static string sel;
 585
 586         if (!available())
 587                 return;
 588
 589         LCursor & cur = cursor_;
 590
 591         if (!cur.selection()) {
 592                 xsel_cache_.set = false;
 593                 return;
 594         }
 595
 596         if (!xsel_cache_.set ||
 597             cur.top() != xsel_cache_.cursor ||
 598             cur.anchor_.top() != xsel_cache_.anchor)
 599         {
 600                 xsel_cache_.cursor = cur.top();
 601                 xsel_cache_.anchor = cur.anchor_.top();
 602                 xsel_cache_.set = cur.selection();
 603                 sel = cur.selectionAsString(false);
 604                 if (!sel.empty())
 605                         workarea().putClipboard(sel);
 606         }
 607 }
 608
 609
 610 void BufferView::Pimpl::selectionLost()
 611 {
 612         if (available()) {
 613                 screen().hideCursor();
 614                 cursor_.clearSelection();
 615                 xsel_cache_.set = false;
 616         }
 617 }
 618
 619
 620 void BufferView::Pimpl::workAreaResize()
 621 {
 622         static int work_area_width;
 623         static int work_area_height;
 624
 625         bool const widthChange = workarea().workWidth() != work_area_width;
 626         bool const heightChange = workarea().workHeight() != work_area_height;
 627
 628         // Update from work area
 629         work_area_width = workarea().workWidth();
 630         work_area_height = workarea().workHeight();
 631
 632         if (buffer_ && widthChange) {
 633                 // The visible LyXView need a resize
 634                 resizeCurrentBuffer();
 635         }
 636
 637         if (widthChange || heightChange)
 638                 update();
 639
 640         // Always make sure that the scrollbar is sane.
 641         updateScrollbar();
 642         owner_->updateLayoutChoice();
 643 }
 644
 645
 646 bool BufferView::Pimpl::fitCursor()
 647 {
 648         if (bv_funcs::status(bv_, cursor_) == bv_funcs::CUR_INSIDE) {
 649                 LyXFont const font = cursor_.getFont();
 650                 int const asc = font_metrics::maxAscent(font);
 651                 int const des = font_metrics::maxDescent(font);
 652                 Point const p = bv_funcs::getPos(cursor_, cursor_.boundary());
 653                 if (p.y_ - asc >= 0 && p.y_ + des < workarea().workHeight())
 654                         return false;
 655         }
 656         center();
 657         return true;
 658 }
 659
 660
 661 bool BufferView::Pimpl::multiParSel()
 662 {
 663         if (!cursor_.selection())
 664                 return false;
 665         bool ret = multiparsel_cache_;
 666         multiparsel_cache_ = cursor_.selBegin().pit() != cursor_.selEnd().pit();
 667         // Either this, or previous selection spans paragraphs
 668         return ret || multiparsel_cache_;
 669 }
 670
 671
 672 void BufferView::Pimpl::update(Update::flags flags)
 673 {
 674         lyxerr[Debug::DEBUG]
 675                 << BOOST_CURRENT_FUNCTION
 676                 << "[fitcursor = " << (flags & Update::FitCursor)
 677                 << ", forceupdate = " << (flags & Update::Force)
 678                 << ", singlepar = " << (flags & Update::SinglePar)
 679                 << "]  buffer: " << buffer_ << endl;
 680
 681         // Check needed to survive LyX startup
 682         if (buffer_) {
 683                 // Update macro store
 684                 buffer_->buildMacros();
 685
 686                 CoordCache backup;
 687                 std::swap(theCoords, backup);
 688
 689                 // This, together with doneUpdating(), verifies (using
 690                 // asserts) that screen redraw is not called from
 691                 // within itself.
 692                 theCoords.startUpdating();
 693
 694                 // First drawing step
 695                 ViewMetricsInfo vi = metrics(flags & Update::SinglePar);
 696                 bool forceupdate(flags & (Update::Force | Update::SinglePar));
 697
 698                 if ((flags & Update::FitCursor) && fitCursor()) {
 699                         forceupdate = true;
 700                         vi = metrics();
 701                 }
 702                 if ((flags & Update::MultiParSel) && multiParSel()) {
 703                         forceupdate = true;
 704                         vi = metrics();
 705                 }
 706                 if (forceupdate) {
 707                         // Second drawing step
 708                         screen().redraw(*bv_, vi);
 709                 } else {
 710                         // Abort updating of the coord
 711                         // cache - just restore the old one
 712                         std::swap(theCoords, backup);
 713                 }
 714         } else
 715                 screen().greyOut();
 716
 717         // And the scrollbar
 718         updateScrollbar();
 719         owner_->view_state_changed();
 720 }
 721
 722
 723 // Callback for cursor timer
 724 void BufferView::Pimpl::cursorToggle()
 725 {
 726         if (buffer_) {
 727                 screen().toggleCursor(*bv_);
 728
 729                 // Use this opportunity to deal with any child processes that
 730                 // have finished but are waiting to communicate this fact
 731                 // to the rest of LyX.
 732                 ForkedcallsController & fcc = ForkedcallsController::get();
 733                 fcc.handleCompletedProcesses();
 734         }
 735
 736         cursor_timeout.restart();
 737 }
 738
 739
 740 bool BufferView::Pimpl::available() const
 741 {
 742         return buffer_ && bv_->text();
 743 }
 744
 745
 746 Change const BufferView::Pimpl::getCurrentChange()
 747 {
 748         if (!buffer_->params().tracking_changes)
 749                 return Change(Change::UNCHANGED);
 750
 751         LyXText * text = bv_->getLyXText();
 752         LCursor & cur = cursor_;
 753
 754         if (!cur.selection())
 755                 return Change(Change::UNCHANGED);
 756
 757         return text->getPar(cur.selBegin().pit()).
 758                         lookupChangeFull(cur.selBegin().pos());
 759 }
 760
 761
 762 void BufferView::Pimpl::savePosition(unsigned int i)
 763 {
 764         if (i >= saved_positions_num)
 765                 return;
 766         BOOST_ASSERT(cursor_.inTexted());
 767         saved_positions[i] = Position(buffer_->fileName(),
 768                                       cursor_.paragraph().id(),
 769                                       cursor_.pos());
 770         if (i > 0)
 771                 owner_->message(bformat(_("Saved bookmark %1$d"), i));
 772 }
 773
 774
 775 void BufferView::Pimpl::restorePosition(unsigned int i)
 776 {
 777         if (i >= saved_positions_num)
 778                 return;
 779
 780         string const fname = saved_positions[i].filename;
 781
 782         cursor_.clearSelection();
 783
 784         if (fname != buffer_->fileName()) {
 785                 Buffer * b = 0;
 786                 if (bufferlist.exists(fname))
 787                         b = bufferlist.getBuffer(fname);
 788                 else {
 789                         b = bufferlist.newBuffer(fname);
 790                         // Don't ask, just load it
 791                         ::loadLyXFile(b, fname);
 792                 }
 793                 if (b)
 794                         setBuffer(b);
 795         }
 796
 797         ParIterator par = buffer_->getParFromID(saved_positions[i].par_id);
 798         if (par == buffer_->par_iterator_end())
 799                 return;
 800
 801         bv_->setCursor(makeDocIterator(par, min(par->size(), saved_positions[i].par_pos)));
 802
 803         if (i > 0)
 804                 owner_->message(bformat(_("Moved to bookmark %1$d"), i));
 805 }
 806
 807
 808 bool BufferView::Pimpl::isSavedPosition(unsigned int i)
 809 {
 810         return i < saved_positions_num && !saved_positions[i].filename.empty();
 811 }
 812
 813
 814 void BufferView::Pimpl::switchKeyMap()
 815 {
 816         if (!lyxrc.rtl_support)
 817                 return;
 818
 819         Intl & intl = owner_->getIntl();
 820         if (bv_->getLyXText()->real_current_font.isRightToLeft()) {
 821                 if (intl.keymap == Intl::PRIMARY)
 822                         intl.KeyMapSec();
 823         } else {
 824                 if (intl.keymap == Intl::SECONDARY)
 825                         intl.KeyMapPrim();
 826         }
 827 }
 828
 829
 830 void BufferView::Pimpl::center()
 831 {
 832         CursorSlice & bot = cursor_.bottom();
 833         lyx::pit_type const pit = bot.pit();
 834         bot.text()->redoParagraph(pit);
 835         Paragraph const & par = bot.text()->paragraphs()[pit];
 836         anchor_ref_ = pit;
 837         offset_ref_ = bv_funcs::coordOffset(cursor_, cursor_.boundary()).y_
 838                 + par.ascent() - workarea().workHeight() / 2;
 839 }
 840
 841
 842 void BufferView::Pimpl::stuffClipboard(string const & content) const
 843 {
 844         workarea().putClipboard(content);
 845 }
 846
 847
 848 void BufferView::Pimpl::MenuInsertLyXFile(string const & filenm)
 849 {
 850         BOOST_ASSERT(cursor_.inTexted());
 851         string filename = filenm;
 852
 853         if (filename.empty()) {
 854                 // Launch a file browser
 855                 string initpath = lyxrc.document_path;
 856
 857                 if (available()) {
 858                         string const trypath = owner_->buffer()->filePath();
 859                         // If directory is writeable, use this as default.
 860                         if (IsDirWriteable(trypath))
 861                                 initpath = trypath;
 862                 }
 863
 864                 FileDialog fileDlg(_("Select LyX document to insert"),
 865                         LFUN_FILE_INSERT,
 866                         make_pair(string(_("Documents|#o#O")),
 867                                   string(lyxrc.document_path)),
 868                         make_pair(string(_("Examples|#E#e")),
 869                                   string(AddPath(package().system_support(), "examples"))));
 870
 871                 FileDialog::Result result =
 872                         fileDlg.open(initpath,
 873                                      FileFilterList(_("LyX Documents (*.lyx)")),
 874                                      string());
 875
 876                 if (result.first == FileDialog::Later)
 877                         return;
 878
 879                 filename = result.second;
 880
 881                 // check selected filename
 882                 if (filename.empty()) {
 883                         owner_->message(_("Canceled."));
 884                         return;
 885                 }
 886         }
 887
 888         // Get absolute path of file and add ".lyx"
 889         // to the filename if necessary
 890         filename = FileSearch(string(), filename, "lyx");
 891
 892         string const disp_fn = MakeDisplayPath(filename);
 893         owner_->message(bformat(_("Inserting document %1$s..."), disp_fn));
 894
 895         string res;
 896         Buffer buf("", false);
 897         buf.error.connect(boost::bind(&BufferView::Pimpl::addError, this, _1));
 898         if (::loadLyXFile(&buf, MakeAbsPath(filename))) {
 899                 lyx::cap::pasteParagraphList(cursor_, buf.paragraphs(),
 900                                              buf.params().textclass);
 901                 res = _("Document %1$s inserted.");
 902         } else
 903                 res = _("Could not insert document %1$s");
 904
 905         owner_->message(bformat(res, disp_fn));
 906         bv_->showErrorList(_("Document insertion"));
 907         resizeCurrentBuffer();
 908 }
 909
 910
 911 void BufferView::Pimpl::trackChanges()
 912 {
 913         bool const tracking = buffer_->params().tracking_changes;
 914
 915         if (!tracking) {
 916                 for_each(buffer_->par_iterator_begin(),
 917                          buffer_->par_iterator_end(),
 918                          bind(&Paragraph::trackChanges, _1, Change::UNCHANGED));
 919                 buffer_->params().tracking_changes = true;
 920
 921                 // We cannot allow undos beyond the freeze point
 922                 buffer_->undostack().clear();
 923         } else {
 924                 cursor_.setCursor(doc_iterator_begin(buffer_->inset()));
 925                 if (lyx::find::findNextChange(bv_)) {
 926                         owner_->getDialogs().show("changes");
 927                         return;
 928                 }
 929
 930                 for_each(buffer_->par_iterator_begin(),
 931                          buffer_->par_iterator_end(),
 932                          mem_fun_ref(&Paragraph::untrackChanges));
 933
 934                 buffer_->params().tracking_changes = false;
 935         }
 936
 937         buffer_->redostack().clear();
 938 }
 939
 940
 941 bool BufferView::Pimpl::workAreaDispatch(FuncRequest const & cmd0)
 942 {
 943         //lyxerr << BOOST_CURRENT_FUNCTION << "[ cmd0 " << cmd0 << "]" << endl;
 944
 945         // This is only called for mouse related events including
 946         // LFUN_FILE_OPEN generated by drag-and-drop.
 947         FuncRequest cmd = cmd0;
 948
 949         // Handle drag&drop
 950         if (cmd.action == LFUN_FILE_OPEN) {
 951                 owner_->dispatch(cmd);
 952                 return true;
 953         }
 954
 955         if (!buffer_)
 956                 return false;
 957
 958         LCursor cur(*bv_);
 959         cur.push(buffer_->inset());
 960         cur.selection() = cursor_.selection();
 961
 962         // Doesn't go through lyxfunc, so we need to update
 963         // the layout choice etc. ourselves
 964
 965         // E.g. Qt mouse press when no buffer
 966         if (!available())
 967                 return false;
 968
 969         screen().hideCursor();
 970
 971         // Either the inset under the cursor or the
 972         // surrounding LyXText will handle this event.
 973
 974         // Build temporary cursor.
 975         cmd.y = min(max(cmd.y,-1), workarea().workHeight());
 976         InsetBase * inset = bv_->text()->editXY(cur, cmd.x, cmd.y);
 977         //lyxerr << BOOST_CURRENT_FUNCTION
 978         //       << " * hit inset at tip: " << inset << endl;
 979         //lyxerr << BOOST_CURRENT_FUNCTION
 980         //       << " * created temp cursor:" << cur << endl;
 981
 982         // Put anchor at the same position.
 983         cur.resetAnchor();
 984
 985         // Try to dispatch to an non-editable inset near this position
 986         // via the temp cursor. If the inset wishes to change the real
 987         // cursor it has to do so explicitly by using
 988         //  cur.bv().cursor() = cur;  (or similar)
 989         if (inset)
 990                 inset->dispatch(cur, cmd);
 991
 992         // Now dispatch to the temporary cursor. If the real cursor should
 993         // be modified, the inset's dispatch has to do so explicitly.
 994         if (!cur.result().dispatched())
 995                 cur.dispatch(cmd);
 996
 997         if (cur.result().dispatched()) {
 998                 // Redraw if requested or necessary.
 999                 if (cur.result().update())
1000                         update(Update::FitCursor | Update::Force);
1001                 else
1002                         update(Update::FitCursor | Update::MultiParSel);
1003         }
1004
1005         // See workAreaKeyPress
1006         cursor_timeout.restart();
1007         screen().showCursor(*bv_);
1008
1009         // Skip these when selecting
1010         if (cmd.action != LFUN_MOUSE_MOTION) {
1011                 owner_->updateLayoutChoice();
1012                 owner_->updateToolbars();
1013         }
1014
1015         // Slight hack: this is only called currently when we
1016         // clicked somewhere, so we force through the display
1017         // of the new status here.
1018         owner_->clearMessage();
1019         return true;
1020 }
1021
1022
1023 FuncStatus BufferView::Pimpl::getStatus(FuncRequest const & cmd)
1024 {
1025         FuncStatus flag;
1026
1027         switch (cmd.action) {
1028
1029         case LFUN_UNDO:
1030                 flag.enabled(!buffer_->undostack().empty());
1031                 break;
1032         case LFUN_REDO:
1033                 flag.enabled(!buffer_->redostack().empty());
1034                 break;
1035         case LFUN_FILE_INSERT:
1036         case LFUN_FILE_INSERT_ASCII_PARA:
1037         case LFUN_FILE_INSERT_ASCII:
1038                 // FIXME: Actually, these LFUNS should be moved to LyXText
1039                 flag.enabled(cursor_.inTexted());
1040                 break;
1041         case LFUN_FONT_STATE:
1042         case LFUN_INSERT_LABEL:
1043         case LFUN_BOOKMARK_SAVE:
1044         case LFUN_GOTO_PARAGRAPH:
1045         case LFUN_GOTOERROR:
1046         case LFUN_GOTONOTE:
1047         case LFUN_REFERENCE_GOTO:
1048         case LFUN_WORD_FIND:
1049         case LFUN_WORD_REPLACE:
1050         case LFUN_MARK_OFF:
1051         case LFUN_MARK_ON:
1052         case LFUN_SETMARK:
1053         case LFUN_CENTER:
1054         case LFUN_BIBDB_ADD:
1055         case LFUN_BIBDB_DEL:
1056         case LFUN_WORDS_COUNT:
1057                 flag.enabled(true);
1058                 break;
1059
1060         case LFUN_LABEL_GOTO: {
1061                 flag.enabled(!cmd.argument.empty()
1062                     || getInsetByCode<InsetRef>(cursor_, InsetBase::REF_CODE));
1063                 break;
1064         }
1065
1066         case LFUN_BOOKMARK_GOTO:
1067                 flag.enabled(isSavedPosition(convert<unsigned int>(cmd.argument)));
1068                 break;
1069         case LFUN_TRACK_CHANGES:
1070                 flag.enabled(true);
1071                 flag.setOnOff(buffer_->params().tracking_changes);
1072                 break;
1073
1074         case LFUN_OUTPUT_CHANGES: {
1075                 LaTeXFeatures features(*buffer_, buffer_->params(), false);
1076                 flag.enabled(buffer_ && buffer_->params().tracking_changes
1077                         && features.isAvailable("dvipost"));
1078                 flag.setOnOff(buffer_->params().output_changes);
1079                 break;
1080         }
1081
1082         case LFUN_MERGE_CHANGES:
1083         case LFUN_ACCEPT_CHANGE: // what about these two
1084         case LFUN_REJECT_CHANGE: // what about these two
1085         case LFUN_ACCEPT_ALL_CHANGES:
1086         case LFUN_REJECT_ALL_CHANGES:
1087                 flag.enabled(buffer_ && buffer_->params().tracking_changes);
1088                 break;
1089         default:
1090                 flag.enabled(false);
1091         }
1092
1093         return flag;
1094 }
1095
1096
1097
1098 bool BufferView::Pimpl::dispatch(FuncRequest const & cmd)
1099 {
1100         //lyxerr << BOOST_CURRENT_FUNCTION
1101         //       << [ cmd = " << cmd << "]" << endl;
1102
1103         // Make sure that the cached BufferView is correct.
1104         lyxerr[Debug::ACTION] << BOOST_CURRENT_FUNCTION
1105                 << " action[" << cmd.action << ']'
1106                 << " arg[" << cmd.argument << ']'
1107                 << " x[" << cmd.x << ']'
1108                 << " y[" << cmd.y << ']'
1109                 << " button[" << cmd.button() << ']'
1110                 << endl;
1111
1112         LCursor & cur = cursor_;
1113
1114         switch (cmd.action) {
1115
1116         case LFUN_UNDO:
1117                 if (available()) {
1118                         cur.message(_("Undo"));
1119                         cur.clearSelection();
1120                         if (!textUndo(*bv_))
1121                                 cur.message(_("No further undo information"));
1122                         update();
1123                         switchKeyMap();
1124                 }
1125                 break;
1126
1127         case LFUN_REDO:
1128                 if (available()) {
1129                         cur.message(_("Redo"));
1130                         cur.clearSelection();
1131                         if (!textRedo(*bv_))
1132                                 cur.message(_("No further redo information"));
1133                         update();
1134                         switchKeyMap();
1135                 }
1136                 break;
1137
1138         case LFUN_FILE_INSERT:
1139                 MenuInsertLyXFile(cmd.argument);
1140                 break;
1141
1142         case LFUN_FILE_INSERT_ASCII_PARA:
1143                 InsertAsciiFile(bv_, cmd.argument, true);
1144                 break;
1145
1146         case LFUN_FILE_INSERT_ASCII:
1147                 InsertAsciiFile(bv_, cmd.argument, false);
1148                 break;
1149
1150         case LFUN_FONT_STATE:
1151                 cur.message(cur.currentState());
1152                 break;
1153
1154         case LFUN_BOOKMARK_SAVE:
1155                 savePosition(convert<unsigned int>(cmd.argument));
1156                 break;
1157
1158         case LFUN_BOOKMARK_GOTO:
1159                 restorePosition(convert<unsigned int>(cmd.argument));
1160                 break;
1161
1162         case LFUN_LABEL_GOTO: {
1163                 string label = cmd.argument;
1164                 if (label.empty()) {
1165                         InsetRef * inset =
1166                                 getInsetByCode<InsetRef>(cursor_,
1167                                                          InsetBase::REF_CODE);
1168                         if (inset) {
1169                                 label = inset->getContents();
1170                                 savePosition(0);
1171                         }
1172                 }
1173
1174                 if (!label.empty())
1175                         bv_->gotoLabel(label);
1176                 break;
1177         }
1178
1179         case LFUN_GOTO_PARAGRAPH: {
1180                 int const id = convert<int>(cmd.argument);
1181                 ParIterator par = buffer_->getParFromID(id);
1182                 if (par == buffer_->par_iterator_end()) {
1183                         lyxerr[Debug::INFO] << "No matching paragraph found! ["
1184                                             << id << ']' << endl;
1185                         break;
1186                 } else {
1187                         lyxerr[Debug::INFO] << "Paragraph " << par->id()
1188                                             << " found." << endl;
1189                 }
1190
1191                 // Set the cursor
1192                 bv_->setCursor(makeDocIterator(par, 0));
1193
1194                 update();
1195                 switchKeyMap();
1196                 break;
1197         }
1198
1199         case LFUN_GOTOERROR:
1200                 bv_funcs::gotoInset(bv_, InsetBase::ERROR_CODE, false);
1201                 break;
1202
1203         case LFUN_GOTONOTE:
1204                 bv_funcs::gotoInset(bv_, InsetBase::NOTE_CODE, false);
1205                 break;
1206
1207         case LFUN_REFERENCE_GOTO: {
1208                 vector<InsetBase_code> tmp;
1209                 tmp.push_back(InsetBase::LABEL_CODE);
1210                 tmp.push_back(InsetBase::REF_CODE);
1211                 bv_funcs::gotoInset(bv_, tmp, true);
1212                 break;
1213         }
1214
1215         case LFUN_TRACK_CHANGES:
1216                 trackChanges();
1217                 break;
1218
1219         case LFUN_OUTPUT_CHANGES: {
1220                 bool const state = buffer_->params().output_changes;
1221                 buffer_->params().output_changes = !state;
1222                 break;
1223         }
1224
1225         case LFUN_MERGE_CHANGES:
1226                 if (lyx::find::findNextChange(bv_))
1227                         owner_->getDialogs().show("changes");
1228                 break;
1229
1230         case LFUN_ACCEPT_ALL_CHANGES: {
1231                 cursor_.reset(buffer_->inset());
1232 #ifdef WITH_WARNINGS
1233 #warning FIXME changes
1234 #endif
1235                 while (lyx::find::findNextChange(bv_))
1236                         bv_->getLyXText()->acceptChange(cursor_);
1237                 update();
1238                 break;
1239         }
1240
1241         case LFUN_REJECT_ALL_CHANGES: {
1242                 cursor_.reset(buffer_->inset());
1243 #ifdef WITH_WARNINGS
1244 #warning FIXME changes
1245 #endif
1246                 while (lyx::find::findNextChange(bv_))
1247                         bv_->getLyXText()->rejectChange(cursor_);
1248                 break;
1249         }
1250
1251         case LFUN_WORD_FIND:
1252                 lyx::find::find(bv_, cmd);
1253                 break;
1254
1255         case LFUN_WORD_REPLACE:
1256                 lyx::find::replace(bv_, cmd);
1257                 break;
1258
1259         case LFUN_MARK_OFF:
1260                 cur.clearSelection();
1261                 cur.resetAnchor();
1262                 cur.message(N_("Mark off"));
1263                 break;
1264
1265         case LFUN_MARK_ON:
1266                 cur.clearSelection();
1267                 cur.mark() = true;
1268                 cur.resetAnchor();
1269                 cur.message(N_("Mark on"));
1270                 break;
1271
1272         case LFUN_SETMARK:
1273                 cur.clearSelection();
1274                 if (cur.mark()) {
1275                         cur.mark() = false;
1276                         cur.message(N_("Mark removed"));
1277                 } else {
1278                         cur.mark() = true;
1279                         cur.message(N_("Mark set"));
1280                 }
1281                 cur.resetAnchor();
1282                 break;
1283
1284         case LFUN_CENTER:
1285                 center();
1286                 break;
1287
1288         case LFUN_BIBDB_ADD: {
1289                 LCursor tmpcur = cursor_;
1290                 bv_funcs::findInset(tmpcur, InsetBase::BIBTEX_CODE, false);
1291                 InsetBibtex * inset = getInsetByCode<InsetBibtex>(tmpcur,
1292                                                 InsetBase::BIBTEX_CODE);
1293                 if (inset)
1294                         inset->addDatabase(cmd.argument);
1295                 break;
1296         }
1297
1298         case LFUN_BIBDB_DEL: {
1299                 LCursor tmpcur = cursor_;
1300                 bv_funcs::findInset(tmpcur, InsetBase::BIBTEX_CODE, false);
1301                 InsetBibtex * inset = getInsetByCode<InsetBibtex>(tmpcur,
1302                                                 InsetBase::BIBTEX_CODE);
1303                 if (inset)
1304                         inset->delDatabase(cmd.argument);
1305                 break;
1306         }
1307
1308         case LFUN_WORDS_COUNT: {
1309                 DocIterator from, to;
1310                 if (cur.selection()) {
1311                         from = cur.selectionBegin();
1312                         to = cur.selectionEnd();
1313                 } else {
1314                         from = doc_iterator_begin(buffer_->inset());
1315                         to = doc_iterator_end(buffer_->inset());
1316                 }
1317                 int const count = countWords(from, to);
1318                 string message;
1319                 if (count != 1) {
1320                         if (cur.selection())
1321                                 message = bformat(_("%1$d words in selection."),
1322                                           count);
1323                                 else
1324                                         message = bformat(_("%1$d words in document."),
1325                                                           count);
1326                 }
1327                 else {
1328                         if (cur.selection())
1329                                 message = _("One word in selection.");
1330                         else
1331                                 message = _("One word in document.");
1332                 }
1333
1334                 Alert::information(_("Count words"), message);
1335         }
1336                 break;
1337         default:
1338                 return false;
1339         }
1340
1341         return true;
1342 }
1343
1344
1345 ViewMetricsInfo BufferView::Pimpl::metrics(bool singlepar)
1346 {
1347         // Remove old position cache
1348         theCoords.clear();
1349         BufferView & bv = *bv_;
1350         LyXText * const text = bv.text();
1351         if (anchor_ref_ > int(text->paragraphs().size() - 1)) {
1352                 anchor_ref_ = int(text->paragraphs().size() - 1);
1353                 offset_ref_ = 0;
1354         }
1355
1356         lyx::pit_type const pit = anchor_ref_;
1357         int pit1 = pit;
1358         int pit2 = pit;
1359         size_t const npit = text->paragraphs().size();
1360
1361         // Rebreak anchor paragraph. In Single Paragraph mode, rebreak only
1362         // the (main text, not inset!) paragraph containing the cursor.
1363         // (if this paragraph contains insets etc., rebreaking will
1364         // recursively descend)
1365         if (!singlepar || pit == cursor_.bottom().pit())
1366                 text->redoParagraph(pit);
1367         int y0 = text->getPar(pit).ascent() - offset_ref_;
1368
1369         // Redo paragraphs above anchor if necessary; again, in Single Par
1370         // mode, only if we encounter the (main text) one having the cursor.
1371         int y1 = y0;
1372         while (y1 > 0 && pit1 > 0) {
1373                 y1 -= text->getPar(pit1).ascent();
1374                 --pit1;
1375                 if (!singlepar || pit1 == cursor_.bottom().pit())
1376                         text->redoParagraph(pit1);
1377                 y1 -= text->getPar(pit1).descent();
1378         }
1379
1380
1381         // Take care of ascent of first line
1382         y1 -= text->getPar(pit1).ascent();
1383
1384         // Normalize anchor for next time
1385         anchor_ref_ = pit1;
1386         offset_ref_ = -y1;
1387
1388         // Grey at the beginning is ugly
1389         if (pit1 == 0 && y1 > 0) {
1390                 y0 -= y1;
1391                 y1 = 0;
1392                 anchor_ref_ = 0;
1393         }
1394
1395         // Redo paragraphs below the anchor if necessary. Single par mode:
1396         // only the one containing the cursor if encountered.
1397         int y2 = y0;
1398         while (y2 < bv.workHeight() && pit2 < int(npit) - 1) {
1399                 y2 += text->getPar(pit2).descent();
1400                 ++pit2;
1401                 if (!singlepar || pit2 == cursor_.bottom().pit())
1402                         text->redoParagraph(pit2);
1403                 y2 += text->getPar(pit2).ascent();
1404         }
1405
1406         // Take care of descent of last line
1407         y2 += text->getPar(pit2).descent();
1408
1409         // The coordinates of all these paragraphs are correct, cache them
1410         int y = y1;
1411         for (lyx::pit_type pit = pit1; pit <= pit2; ++pit) {
1412                 y += text->getPar(pit).ascent();
1413                 theCoords.parPos()[text][pit] = Point(0, y);
1414                 if (singlepar && pit == cursor_.bottom().pit()) {
1415                         // In Single Paragraph mode, collect here the
1416                         // y1 and y2 of the (one) paragraph the cursor is in
1417                         y1 = y - text->getPar(pit).ascent();
1418                         y2 = y + text->getPar(pit).descent();
1419                 }
1420                 y += text->getPar(pit).descent();
1421         }
1422
1423         if (singlepar) {
1424                 // collect cursor paragraph iter bounds
1425                 pit1 = cursor_.bottom().pit();
1426                 pit2 = cursor_.bottom().pit();
1427         }
1428
1429         lyxerr[Debug::DEBUG]
1430                 << BOOST_CURRENT_FUNCTION
1431                 << " y1: " << y1
1432                 << " y2: " << y2
1433                 << " pit1: " << pit1
1434                 << " pit2: " << pit2
1435                 << " npit: " << npit
1436                 << " singlepar: " << singlepar
1437                 << endl;
1438
1439         return ViewMetricsInfo(pit1, pit2, y1, y2, singlepar);
1440 }